package com.liu.nb.security;

import cn.hutool.json.JSONUtil;
import com.liu.nb.util.JwtUtils;
import com.liu.nb.util.Result;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.stereotype.Component;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/*
@name:
@description:登录成功处理器
@author: lzy
@title: 天王盖地虎!!!
@time:  2021-08-07 12:37:08
*/
@Component
public class LoginSuccessHandler implements AuthenticationSuccessHandler {
    @Autowired
    private JwtUtils jwtUtils;
    @Override
    public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
        response.setContentType("application/json;charset=UTF-8");
        ServletOutputStream outputStream=response.getOutputStream();
//      登录成功，生成jwt，并且放置到请求头中
        String jwt = jwtUtils.generateToken(authentication.getName());
        response.setHeader(jwtUtils.getHeader(),jwt);
        Result result=Result.success("");
        outputStream.write(JSONUtil.toJsonStr(result).getBytes("UTF-8"));
        outputStream.flush();
        outputStream.close();
    }
}
